Home / 39,553.95-54,584.31-21,404.64

Finding the Fourth Proportional to 39,553.95, 54,584.31 and 21,404.64

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Solution

The fourth proportional to 39,553.95, 54,584.31 and 21,404.64 is: 29,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,553.95 : 54,584.31 = 21,404.64 : x
  2. Step 2: Convert to fraction form
    39,553.95/54,584.31 = 21,404.64/x
  3. Step 3: Cross multiply
    39,553.95x = 54,584.31 × 21,404.64
  4. Step 4: Simplify right side
    39,553.95x = 1,168,357,505.20
  5. Step 5: Solve for x
    x = 1,168,357,505.20/39,553.95
  6. Step 6: Final answer
    x = 29,538.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.